From mboxrd@z Thu Jan 1 00:00:00 1970 From: George Dunlap Subject: Re: Notes on stubdoms and latency on ARM Date: Wed, 31 May 2017 10:09:25 +0100 Message-ID: <7d065c72-aaa8-fb05-11a3-97681ba29acf@citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" To: Stefano Stabellini , Volodymyr Babchuk Cc: Artem_Mygaiev@epam.com, Dario Faggioli , xen-devel@lists.xensource.com, Andrii Anisov , Julien Grall List-Id: xen-devel@lists.xenproject.org T24gMzAvMDUvMTcgMTg6MjksIFN0ZWZhbm8gU3RhYmVsbGluaSB3cm90ZToKPiBPbiBGcmksIDI2 IE1heSAyMDE3LCBWb2xvZHlteXIgQmFiY2h1ayB3cm90ZToKPj4+Pj4gVGhlIG90aGVyIGlzc3Vl IHdpdGggc3R1YmRvbXMgaXMgY29udGV4dCBzd2l0Y2ggdGltZXMuIFZvbG9keW15ciBzaG93ZWQK Pj4+Pj4gdGhhdCBtaW5pb3MgaGFzIG11Y2ggaGlnaGVyIGNvbnRleHQgc3dpdGNoIHRpbWVzIGNv bXBhcmVkIHRvIEVMMCBhcHBzLgo+Pj4+PiBJdCBpcyBwcm9iYWJseSBkdWUgdG8gR0lDIGNvbnRl eHQgc3dpdGNoLCB0aGF0IGlzIHNraXBwZWQgZm9yIEVMMCBhcHBzLgo+Pj4+PiBNYXliZSB3ZSBj b3VsZCBza2lwIEdJQyBjb250ZXh0IHN3aXRjaCBmb3Igc3R1YmRvbXMgdG9vLCBpZiB3ZSBrbmV3 IHRoYXQKPj4+Pj4gdGhleSBhcmUgbm90IGdvaW5nIHRvIHVzZSB0aGUgVkdJQy4gQXQgdGhhdCBw b2ludCwgY29udGV4dCBzd2l0Y2ggdGltZXMKPj4+Pj4gc2hvdWxkIGJlIHZlcnkgc2ltaWxhciB0 byBFTDAgYXBwcy4KPj4+PiBTbyB5b3UgYXJlIHN1Z2dlc3RpbmcgdG8gY3JlYXRlIHNvbWV0aGlu ZyBsaWtlIGxpZ2h0d2VpZ2h0IHN0dWJkb20uIEkKPj4+PiBnZW5lcmFsbHkgbGlrZSB0aGlzIGlk ZWEuIEJ1dCBBRkFJSywgdkdJQyBpcyB1c2VkIHRvIGRlbGl2ZXIgZXZlbnRzCj4+Pj4gZnJvbSBo eXBlcnZpc29yIHRvIHN0dWJkb20uIERvIHlvdSB3YW50IHRvIHByb3Bvc2UgYW5vdGhlciBtZWNo YW5pc20/Cj4+Pgo+Pj4gVGhlcmUgaXMgbm8gd2F5IG91dDogaWYgdGhlIHN0dWJkb20gbmVlZHMg ZXZlbnRzLCB0aGVuIHdlJ2xsIGhhdmUgdG8KPj4+IGV4cG9zZSBhbmQgY29udGV4dCBzd2l0Y2gg dGhlIHZHSUMuIElmIGl0IGRvZXNuJ3QsIHRoZW4gd2UgY2FuIHNraXAgdGhlCj4+PiB2R0lDLiBI b3dldmVyLCB3ZSB3b3VsZCBoYXZlIGEgc2ltaWxhciBwcm9ibGVtIHdpdGggRUwwIGFwcHM6IEkg YW0KPj4+IGFzc3VtaW5nIHRoYXQgRUwwIGFwcHMgZG9uJ3QgbmVlZCB0byBoYW5kbGUgaW50ZXJy dXB0cywgYnV0IGlmIHRoZXkgZG8sCj4+PiB0aGVuIHRoZXkgbWlnaHQgbmVlZCBzb21ldGhpbmcg bGlrZSBhIHZHSUMuCj4+IEhtLiBDb3JyZWN0IG1lLCBidXQgaWYgd2Ugd2FudCBtYWtlIHN0dWJk b20gdG8gaGFuZGxlIHNvbWUgcmVxdWVzdHMKPj4gKGUuZy4gZW11bGF0ZSBNTUlPIGFjY2Vzcyks IHRoZW4gaXQgbmVlZHMgZXZlbnRzLCBhbmQgdGh1cyBpdCBuZWVkcwo+PiBpbnRlcnJ1cHRzLiBB dCBsZWFzdCwgSSdtIG5vdCBhd2FyZSBhYm91dCBhbnkgb3RoZXIgbWVjaGFuaXNtLCB0aGF0Cj4+ IGFsbG93cyBoeXBlcnZpc29yIHRvIHNpZ25hbCB0byBhIGRvbWFpbi4KPiAKPiBUaGUgc3R1YmRv bSBjb3VsZCBkbyBwb2xsaW5nIGFuZCBhdm9pZCBpbnRlcnJ1cHRzIGZvciBleGFtcGxlLCBidXQg dGhhdAo+IHdvdWxkIHByb2JhYmx5IG5vdCBiZSBkZXNpcmFibGUuCj4gCj4gCj4+IE9uIG90aGVy IGhhbmQsIEVMMCBhcHAgKGFzIEkgc2VlIHRoZW0pIGRvZXMgbm90IG5lZWQgc3VjaCBldmVudHMu Cj4+IEJhc2ljYWxseSwgeW91IGp1c3QgY2FsbCBmdW5jdGlvbiBgaGFuZGxlX21taW8oKWAgcmln aHQgaW4gdGhlIGFwcC4KPj4gU28sIGFwcHMgY2FuIGxpdmUgd2l0aG91dCBpbnRlcnJ1cHRzIGFu ZCB0aGV5IHN0aWxsIGJlIGFibGUgdG8gaGFuZGxlCj4+IHJlcXVlc3QuCj4gCj4gVGhhdCdzIHRy dWUuCgpXZWxsIGlmIHRoZXkncmUgaW4gYSBzZXBhcmF0ZSBzZWN1cml0eSB6b25lLCB0aGF0J3Mg bm90IGdvaW5nIHRvIHdvcmsuCllvdSBoYXZlIHRvIGhhdmUgYSBkZWZpbmVkIGludGVyZmFjZSBi ZXR3ZWVuIHRoaW5ncyBhbmQgc2FuaXRpemUgaW5wdXRzCmJldHdlZW4gdGhlbS4gIEZ1cnRoZXJt b3JlLCB5b3UgcHJvYmFibHkgd2FudCBzb21ldGhpbmcgbGlrZSBhIHN0YWJsZQppbnRlcmZhY2Ug d2l0aCBzb21lIGxldmVsIG9mIGJhY2t3YXJkcyBjb21wYXRpYmlsaXR5LCB3aGljaCBpcyBub3QK c29tZXRoaW5nIHRoZSBpbnRlcm5hbCBoeXBlcnZpc29yIGludGVyZmFjZXMgYXJlIGRlc2lnbmVk IGZvci4KCiAtR2VvcmdlCgoKX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX18KWGVuLWRldmVsIG1haWxpbmcgbGlzdApYZW4tZGV2ZWxAbGlzdHMueGVuLm9yZwpo dHRwczovL2xpc3RzLnhlbi5vcmcveGVuLWRldmVsCg==